In a previous post I talk about purchasing the Moss Motors Special Tuning Spoiler. I’m looking forward to installing this spoiler on my MGB GT both for aesthetic and performance reasons.

While the special tuning spoiler is well made I decided to stiffen it up a little with a layer of fiberglass cloth as I’ve never been a huge fan of blown fiberglass. Here’s a photo of the back as the spoiler came from Moss Motors, it’s sanded nicely and generally well done. I’m assuming the spoiler is polyester resin and a little research showed that epoxy resin will stick well. This is good as I have lots of epoxy.

Moss Motors Special Tuning Spoiler blown glass
Moss Motors Special Tuning Spoiler blown glass

The gel coat is rough in some areas but this will be sanded down and filled as required. The mold does look a little tired but this isn’t a big deal.

Moss Motors Special Tuning Spoiler gel coat
Moss Motors Special Tuning Spoiler gel coat

After a good sanding and cleaning I applied a layer of fiberglass cloth with epoxy resin. This was a messy job with all the angles but a little cutting a and smaller pieces made it doable.

Moss Motors Special Tuning Spoiler with fiberglass cloth
Moss Motors Special Tuning Spoiler with fiberglass cloth

After curing I sanded the glass and cleaned up the edges. Looks really good.

Modified Moss Motors Special Tuning Spoiler
Modified Moss Motors Special Tuning Spoiler

I sanded the gel coat to 400 at this point and sprayed on a high build primer. Another sanding and the spoiler should be ready for paint. I’m guessing the spoiler is now about 4 times as strong. If anything, the lack of flexibility might make it a little difficult to install, I’ll test fit it to the MGB GT later today. Is a stiffer spoiler stronger? I’m not sure what will happen the first time I hit something but at least it will be fixable.

Moss Motors Special Tuning Spoiler with primer
Moss Motors Special Tuning Spoiler with primer

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